Millions of dollars in farm subsidies for irrigation equipment aimed at water conservation have led to more water use, not less, threatening vulnerable aquifers and streams, The New York Times reported. From Wyoming to the Texas Panhandle, water tables have fallen 150 feet in some areas - ranging from 15 percent to 75 percent - since the 1950s, scientists say, because the subsidies give farmers the incentive to irrigate more land. Other areas, including several Midwestern states, have also been affected. Read more.